The reading is from St. Paul's First Letter to the Corinthians 1:1-9

Paul, called by the will of God to be an apostle of Christ Jesus, and our brother Sosthenes, To the church of God which is at Corinth, to those sanctified in Christ Jesus, called to be saints together with all those who in every place call on the name of our Lord Jesus Christ, both their Lord and ours: Grace to you and peace from God our Father and the Lord Jesus Christ. I give thanks to my God always for you because of the grace of God which was given you in Christ Jesus, that in every way you were enriched in him with all speech and all knowledge - even as the testimony to Christ was confirmed among you - so that you are not lacking in any spiritual gift, as you wait for the revealing of our Lord Jesus Christ; who will sustain you to the end, guiltless in the day of our Lord Jesus Christ. God is faithful, by whom you were called into the fellowship of his Son, Jesus Christ our Lord.